Grogg thinks that \((x+y)^2 = x^2 + y^2\) for all real numbers x and y but Lizzie disagrees! Let's get to the bottom of it.
a) Evaluate \((x + y)^2\) and \(x^2 + y^2\) when x=5 and y=12
b) When does \((x + y)^2\) equal \(x^2 + y^2?\) When does \((x + y)^2\) not equal \(x^2 + y^2?\)
+36915 Did you substitute in x = 5 y = 12 to find the results?
b. only when x = 0 or y= 0 or they BOTH = 0 are they equal
+36915 Did you substitute in x = 5 y = 12 to find the results?
b. only when x = 0 or y= 0 or they BOTH = 0 are they equal
